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Obtain the noise margins $N M_L$ and $N M_H$ for the gate whose transfer characteristic is shown in Figure P14.15 Figure P14.15 can't copy

   Obtain the noise margins $N M_L$ and $N M_H$ for the gate whose transfer characteristic is shown in Figure P14.15
Figure P14.15 can't copy

Essentials of Electrical and Computer Engineering

Essentials of Electrical and Computer Engineering

David V. Kerns, Jr.,… 1st Edition

Chapter 14, Problem 15

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15. Look for the input voltage (V_in) and output voltage (V_out) values at which the output transitions from low to high and high to low. Show more…

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Obtain the noise margins $N M_L$ and $N M_H$ for the gate whose transfer characteristic is shown in Figure P14.15 Figure P14.15 can't copy

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Key Concepts

Noise Margins

Noise margins are the measures of the allowable variations or disturbances (noise) in a signal that a digital circuit can tolerate without misinterpreting a high or low logic level. They are quantified as NM_H (noise margin high), which is the difference between the minimum output high voltage and the minimum voltage recognized as a valid high input, and NM_L (noise margin low), which is the difference between the maximum output low voltage and the maximum voltage recognized as a valid low input. These margins ensure reliable operation in the presence of noise.

Voltage Transfer Characteristic (VTC)

The Voltage Transfer Characteristic is a graphical representation that shows how the output voltage of a logic gate responds to varying input voltage levels. It is crucial in digital circuit analysis as it reveals the regions of proper high and low outputs, the threshold or switching region where the output rapidly transitions, and ultimately aids in determining the noise margins by clearly identifying the boundaries between valid logic levels.

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